Apparatus for treating wood.



G. BRYAN.

APPARATUS FOR TREATING WOOD.

APPLICATION FILED DEC-14,1914.

m JT

n4 an t a D1 G. BRYAN,

APPARATUS FOR TREATING WOOD.

APPLICATION FILED 020. I4. 1914.

1., 182,633. atented May 9, 1916.

4 SHEETSSHEET 2.

e. BRYAN. APPARATUS FOR TREATING WOOD.

APBL'Ic'ATmN FILED 020.14. I914.

Patented May 9, 1916.

4 SHEETS-SHEET 3 IHSIISPEIIEJI. mmwmmsnant G. BRYAN.

APPARATUS F08 TREATING W OOD. APPLICATION FILED DEC-14.19l4.

Patented May 9, 1916.

4 SHEETS-SHEET 4- 5] run W001 cmdm w entrain snares- PATENT. carton.

- 'Gonnon BRYAN, or new BnIrAIncoNNncTIcur.

APPARATUS FOR TREATING W061).

Specification of Letters Patent.

. Patented May 9, 1916.

i Application as December 14, 1914. 'Serial No. 877,055.

To all ivkom it may-concern Be It known that I, Gonoox BRYAX, a citizen of the United States of America, residclosure end of the chamber with the door in open position, on an enlarged scale, show-- .T he apparatus comprisesing in New Britain, in the county of Hartford and State of Connecticut, have invented a certain new and useful Apparatus for Treating ll'ood', of which the following is a specification.

This invention relates to'the impregna tion of wood with preserving or fire-proof- 1ng material in fluid cond1t1on,,and consists .of an apparatus adapted to force such masupplying fluidunder pressure to one' end of the wood, .and other details of construction, as hereafter fully described, reference being, bad to the accompanying drawings, in which:

. .Figure 1 is a longitudinal vertical section of an apparatus inoperative condition embodying the essential features of this in-' vention: Fig. 2, a vertical section of the ing the .door, by dotted'lines, moved away from its seat; Fig. 3, a similar view of the preserving or: fireproofing fluid charging end of the chamber; Fig. 4:, a sectional plan view-on a central horizontal line of the I closure end of the chamber showing the door of the wood whose edges are correspondingly.

open; and Fig. 5, a transverse line 5, 5, Fig. 3.

section on 6 designates apiece of wood, which may 'be' timber, rectangular in cross-section, as

a railroad tie, or a log circular in crosssection; 7-a chuck or movable support preferably having the. walls 8 of its interior in clined as shown to receive and hold one end tapered; 9 designates the closure door of the chamber provided with, a similar chuck or holder with inclined walls-1O and with an opening through the door at the small end.

is accomof the chuck. If logs are to be treated, the

mouths of the chucks? and 9 will. be circular and, if rectangular-timbers, ascross ties are to be treated, the mouths of the chucks will be rectangular as shown in Fig. 2; the size and depths of the mouth being 'such .as

are adapted to .hold and seal the ends of different standard'sizes of cross ties.

The closure door 9 is contained ina head piece 11, preferably approximately spherical in form, said door havinga rearwardly.erc tending flange 12 resting on a lug 13 and held thereon by a screw bolt l i-which passes through a slot 15 in the flange, and is located on, or about on,the vertical axis of the head thus providing for the rearward movement ofthe door from the seating face 16 inside the opening 17 of the head piece 11 in which position it maybe swung at right angles to occupy the position shown by full lines in Figs. 2 and 41, leaving a free passage to and from the chamber for'the wood 6. A circular way 18 is provided. to support the main part of the. door 9 asit is opened and closed. I The door has inthe outer face a sealing ring 19 of any suitable material to form a tight joint with the seating face 16.

A stop 20 of any suitable material, against which'the edgeof. the door impinges when it is open, is secured by a bolt to the inside of the head piece 11.

A pipe '21 is secured to the head piece 11 by bolts passing through aflange 23 'on the pipe and a flange 2-1 on the head piece.

A suitable sealing yoint ring 25 is provided.

To locatethe wooc 6, as itis placed-in the apparatus forits ends toproperly seat-in the inclined walls of the chucks 7.:fi'and 9, a guide is provided at the forwarde'nfd of the pipe 21 consisting-of a block of wood, on

other material, 26 secured in place by screws 27 and. having'an inclined forward end 'cov ered by a plate of metal 28 secured thereto by screws 29, 29'. A, similar guide piece 30,- provided with an inclined wearing platev 31, is secured by screws 32 in the other end of the pipe 21 'and steers the inner-end of the wood 6 into the mouth of the chu'ck't'. The lower edge of the chuck 7 rests on, or is ad.- j acent to. the guide 30 and the upper part of the chuck is provided with a finger 33 arranged to slide in a guide way 34 at the up- 'per part of the. pipe 21. This insures the proper'alinement of the tapering walls of v the chucks 7 and 9.. Secured 'by screw threads to the rear end of. the pipe21 is a rear hea dv piece, 35 which, with the pipe 1 21 and the other spherical head piece'll. constitutes the chamber of the apparatus.

-linjtlleoperation of the apparatus it is contemplated to fill the chamberwithefluid 3 ma terial'which may be similar to that which is used to till the pores of the wood, and to rovide for this a 51m 36 havin a valve 37 P r;

connects the upper side of the head piece 11 toja supp'ly tank into which the fluid may be pumped troni a tank 38 located beneaththe opening 17 ofthe head" 11. Into this tank the fluid flows from the chamber when wood is released from the door and the door 9 is opened-after a charging operation. An air valve 39 also attached by a nipple 40 to the upper part ofthe spheri cal head 11 permits,

whenopen, air-to escape from the chamber whilebeing' filled. The apparatus is prefer ablyfs'et in inclined position, as shown in Fig, 1, with the object of retaining in the chamber as much of the fluid as possible so as'toeconomize time etc. in filling the chamhenwith fluid ready foran operation when the door is closed after a log or cross-tie has been placed intreating position in the chamberr -The dotted line ac, r, indicates the level offluid left in thechamber.

' i The moyablechuck or wood holder 7 and theactive fluid supply are controlled as fol-. lows: The chuck 7 is secured by screw bolts the hollow plunger 42 acts, when rotated, to cause the chuck 7 to move toward and from the chuck 10 of door 9, said screw having a I stein 51fitted to "rotate in the end of the tube i5 and a'stufling box 5:2 and having a collar 53 bearing against thrust washers 54 placed'between it andthe inside of the end "of 'thetub'e'ia). The screw may be manipulatedbyany suitable means, a hand wheel 55' secured to the end of the stem 51 being shown for this purpose.

The preserving or waterproofing material is supplied under pressure through the pipe 56' which is screwed in the upper side of the tube 45, andis provided with a valve 57 for controlling the flow of the fluid. The fluid from .p'ipe 56 surrounds the plunger 42.-

passes through'bores 58 longitudinally in the plunger outside the screw threaded portion 50 and along aro'find the screw 49. and

fthroughftlie: central bore 59 in the chuck end of the plunger. and-so into the chuck 7. Tlie "outer face of the doort) has applied to a spout 60 comprising a flange by which it is secured by screw bolts 61 to the door, and a discharge lip 62 to direct the 7'sap'iete, exudi-iig frbui :the tend the wood or being forced through and from the pores,

so itv may, if desired, be received in a vessel other than the tank -I,In,the operation, the door 9 being open, a

, piece of wood, a cross tie or a log, as the case may be, is passedinto the chamber, being guided into approximate position by the guides 26 and 30. Thedoor is then swung around intodotted position shown in Fig. 2, and the chuck 7 is then set forward by-the screw 49 and, sliding over the rear end of the wood, forces the forward en'd into the chuck 10 of the door. closing the door against its seat and finally pressing the ends of the wood into the chucks with sufficient force to insure Qtigh't sealing joints. The taper chucks and slightly taper ends -of the wood tend to this result. The chamber may then be filled with the fluid through the supply pipe 36. Everything being closed and tight,

the fluid under pressure is supplied by the pipe 56 and acts on the end 0 the wood in chuck 7, the pressure being sufliciently great to quickly force out from and replace all of the sap, etc., in the pores of the wood. The

pressure for this purpose may be from 500 to 600 or more pounds per square inch, and

it has been demonstrated in practice that" with green wood and adequate pressure the charging process may be completed w th some woods in cons derably less than a mmute. The fluid surrounding the wood in the i chamber acts as a resisting medium to pre' vent injury to the wood, which may in some cases be ruptured by the internal pressure in the pores of the wood, and the fluid sur rounding the wood may only be submitted to pressure, equal to that m the pores, when the wood is of such a character as to allow lateral escape of the pressure fluid through the wood; and it is to avoid disruption of the wood and loss of the charging .fluid that a closed chamber is provided. In treating wood in which there would be no such lateral escape of fluid it'will not be necessary to fill the chamber with a fluid nor to provide. a-

high pressure seal for the wood at the door.

provisions for resisting-the end thrust then only being necessary. a

It, will be observed that by this construction and method of making the end seals practically the whole surface of one end of the wood is subjected to the fluid under pressure. i

'hen it is desired to use the apparatus to treat wood 1n the chambeigwhich wood may be of any form and size, in the, ordinary way without using the end chucks..then the opening in the door may be closed by a plate 63,- ,shown in Fig. :2 in dotted'lines. in the place of the spout 62; thus providing j a wood treating chamber with a door adapted to. open inwardly andv be held against itsseat byinternal pressure.

tiaaese I claim 1. An apparatus for impregnating wood,

comprising a chamber, adoor adaptedito open-inwardly at one end of'the chamber, a support on the do'oradapted to hold one end of a piece of wood, a movable supportin the chamber adapted to hold the other end of the piece of woodymeans for supplying fluid under pressure to one end of the wood and means for moving the' movable support and, through the medium of the wood held between the supports, forcing the door against its seat at the end of the chamber.

2. An apparatus for impregnating wood, comprising a chamber having an enlarged approximately spherical head, a door, sup-' ported on a guide-way and a central lug and adapted to turn on a stud or screw bolt on the lug, to open inwardly to a right angular position in the head at one end of the chamber, a support on the door, a movable support at the other end of the chamber, said supports being adapted to hold a piece of wood between them by its ends, means for supplying a fluid under pressure to the movable chuck, and means for forcing the movable chuck on the wood and by the wood pressing the door closed against its seat at the end of the chamber.

3. An apparatus for impregnating wood, comprising a taper chuck adapted to hold the end of a piece of wood whose edges are correspondingly tapered, a chamber in which the wood is placed and in one end of which the chuck is located, means fosupplying a fluid under pressure to the en of the wood within the chuck, means for supporting the other end of the wood exposed to the atmosphere to resist the thrust of the pressure fluid on the wood, a door at the other end of the chamber carrying the supporting means and means for forcing the chuck firmly on the end of the wood and pressing the wood against its supporting means.

4.'An apparatus for impregnating wood,

,comprising a chamber, a door, adapted to open inwardly, at one end of, the chamber,

. .an open chuck on the door, a movable chuck at the other end of the chamber, said chucks being adapted to hold a piece of woodbetween them 'by its ends, means fdr'supplying a fluid under pressure to the movable chuck and means for forcing the movable chuck on the wood and by the wood pressing'the door closed against-its seat at the-end of the chamber. I

5. An apparatusfor' impregnating wood,

comprising 'a chamber, a door, adapted to' open inwardly, at one end of the chamber. an open chuck on the door, having inclined walls, a movable chuck at the other end of 'the chamber also having inclined walls, said chucks being, adapted to hold a piece of wood between them by its ends, the edges of its ends being beveled correspondingly to &

the inclination of the walls .of the chucks, means for supplying a fluid under pressure to the movable chuck and means for forcing the movable chuck on the/wood) and by the I wood pressing the door closed against its seat at the end of the chamber.

6. An apparatus for impregnating-wood,

I comprising a chamber, a door, adapted to open inwardly,'at one end-of the chamber, an open chuck on the door, a movable chuck at the other end of the chamber, said chucks being adapted to hold a piece of wood between them by its ends, means for supplying a fluid under pressure to the movable chuck, means for forcing the movable chuck on the wood and by the wood pressing the door closed against its seat at the end of the chamber and guide-ways in the chamber for,

- chuck at the other end of the chamber, said chucks being adapted to hold a piece of wood.- between them by. its ends, means for supplying a fluid under pressure to the movable chuck and meansfor forcing the movable chuck on the wood and by the wood pressing the door closed-against its seat at the end of the chamber.-

8. An apparatus for impregnating wood, comprising a chamber having an enlarged approximately spherical head with an opening for the admission of. wood to the'chamber and a door seat around said opening, a door, adapted to move toward and from the seat and to swing laterally when away from the seat on acenter to open inwardly. at

right anglesftjo its seating position in. the

head at one end of the chamber, an open chuck on the door, a movable chuck at the other end of the chamber, said chucks being adapted to hold a piece of wood between them by its ends, means for supplying a fluid under pressure to the movable chuck and means for forcing the movable chuck on the wood and by the wood pressing the door closed against its seat at the end of the chamber.

9. An apparatus for impregnating wood, comprising a chamber, a door, adapted to open inwardly. at one end of the chamber, an open chuck on the door, a movable chuck carried on the end of a sliding plunger at the other end of the chamber, said chucks being adapted to hold a piece of wood between them by its ends, means for supplying a fluid under pressure through the plunger to the movable chuck and a screw working in a thread in the plunger and held stationary as regards longitudinal movement.

10. An apparatus for impregnating wood, comprising a chamber, a door, adapted to open inwardly, at one end of the chamber, an open chuck on the door having inclined walls, a movable chuckcarried on the end of a sliding plunger at the other end of the chamber also having inclined walls, said chucks being adapted to hold a piece ofwood longitudinally between them, the edges -of the ends of the wood being beveled coropen inwardly at one end of the chamber, a support on the door adapted to hold one end of a piece of wood. a movable support in the chamber adapted to hold the other end of the piece of wood, means for supplying fluid under pressure to one end of the wood, said chamber being inclined with the door end in elevated position, whereby a considerable portion of the fluid with which the chamber is charged will remain in the chamber when the door is open. and means for moving the movable support and. through the medium of the. wood held between the supports, forcing the door against its seat at the end of the chamber.

12. An apparatus for impregnatingwood, comprising a chamber, a door adapted to open inwardly at one end. of the chamber,

a support on the door adapted to hold one end of apiece of wood, a movable support in the chamber adapted to hold the otherthe chamber is charged will remain inthe' chamber when the door is open, a supply pipe by which the chamber may be filled with a fluid, an air vent at the upper part of the-chamber and means for moving the movable support and, through the medium of the wood held between the supports, forcing the door against its seat at the end of the chamber. i

13. An apparatus for impregnating wood, comprising .a chamber, a door, adapted to open inwardly, at one end of the" chamber, an open chuck on the door, a movable chuck at the other end of the chamber, said chucks being adapted-to hold a piece of wood between them by its ends, means for supplying" a fluid under pressure to the movable chuck. a tank into which the fluid flows from the door end of the chamber,a spout on the door by means of which the fluids exuding from the discharge end of the wood may be collected, and means for forcing the movable chuck on the wood and by the wood pressing the door closed against its seat at the end of the chamber. 4

In test1mon v whereot, I have hereunto subscribed my name.

GORDOX BRYAN.

Witnesses:

MILDRED E. Towi-zns, ARTHUR J. Karen. 

